Height confers advantages in many sports—to a point. But what if you’re too tall to even safely fit on a bicycle? Bike builder David Folch shares both the engineering challenges and the joy of creating supersized bikes for supersized riders.

Experimental physicist Carl Haber restores antique audio recordings too old, fragile, or damaged to be otherwise replayed—including recordings made in wax, soot, and foil. Using optical scanning technologies from his work at CERN in Switzerland, Haber has recovered and preserved a diverse collection of deteriorating sonic artifacts, voices from the past that otherwise would have been lost.

Follow the trail of this intriguing element through ceramics, cleaning agents, fireworks, nuclear reactors, and nanotubes. Get a primer on quantum mechanics, play with slime, and see live flameworking with Russell Taylor of Public Glass.

Welcome to our 27th annual Pi Day! Help us celebrate this never-ending number (3.14159 . . .) and Einstein's birthday as well. On the afternoon of Saturday, March 14, 2015, participate in pi-related activities and enjoy a piece of pie.
Founded at the Exploratorium by our own Prince of Pi, physicist Larry Shaw, Pi Day has become an international holiday, celebrated live and online all around the world.

Join Exploratorium Senior Scientist Paul Doherty as he scours the globe for the world'sgreatest science demonstrations. In the 'Try This' series, Paul introduces us to science teachers who are famed for teaching some of the best science lessons. Watch the webcast, see the activities, and then try it yourself!

What is Community Radio? The DJs and station managers at KPOO, KUSF in Exile, Mutiny Radio and Radio Valencia give us some insight into community radio in the Bay Area, how it works and the challenges they face.
http://www.kpoo.com/
http://savekusf.org/
http://pcrcollective.org/
http://radiovalencia.fm/

Join Exploratorium scientists Paul Doherty and Isabel Hawkins for a live webcast as they share information about the Rosetta Mission, which is due to be "woken up" on January 20th, 2014. Rosetta is a spacecraft en route to Comet 67P/Churyumov-Gerasimenko, where it will make the most detailed study of a comet ever attempted.

Join Ron Hipschman at a live webcast where he’ll investigate sound waves, interference, beats, and harmonics. What is sound? How high a pitch can you hear? Can two sounds add up to no sound? Explore these questions and more in this resonant presentation.

Webcasts made possible through the generosity of the Gordon and Betty Moore Foundation, the Jim Clark Endowment for Internet Education, the McBean Family Foundation.

Bandwidth and infrastructure support for connectivity to the California Research and Education Network and to other Internet2-connected networks provided by the Corporation for Educational Networks Initiatives in California (CENIC).